You're climbing to 1200 METERS elevation where Dacian King Decebalus built his FORTRESS-CAPITAL with SIX CITADELS — an IMPREGNABLE fortress that Trajan STILL destroyed in 106 AD. From Orăștie, drive 20 min to Costești, then 18km dirt road (1 hour) to parking (15 RON fee). Hike 1-2km uphill to citadel (moderate difficulty, wear hiking shoes), pace yourself at altitude, and count the citadel layers as you ascend (six total). At the top, face south — Trajan's legions approached from that direction.
🔄 BACKUP: If weather is bad or you can't hike, visit the Hunedoara Museum in nearby Deva (20 min away) — has Sarmizegetusa artifacts. Or skip and focus on Alba Iulia (next stop).